Duncan Crystals & Crackles
 Duncan Crystals & Crackles brush-on glaze, product summary
A range of leadfree crystal and crackle glazes with a firing range from 1000 to 1020 deg C.

For best results with the crackle glazes, stir the top of the glaze and apply 2 even coats to bisque, allowing the glaze to dry between the coats and then stir the glaze mixing the crystals into the glaze and apply a third coat.
For best results with the crackle glazes, apply 3 even coats allowing the glaze to dry between coats and after firing warm the pieces and then rub Indian Ink into the surface so it fills the cracks, wipe off any excess.

The samples show the results we achieved on both light coloured and red clay and were all fired at 1040 dec C.


Details of sample preparation
The glaze samples are based on a 4cm square tile of a pale clay.
A diagonal stripe of red slip was then applied to simulate the effect on red clay.
The red clay is always shown in the bottom right hand corner.
For matt finishes, a clear glaze was applied on an opposite diagonal.

EARTHENWARE - We poured P1616 Casting slip into a tile mould and when dry brushed on 2 coats of UG38 Light Brown Contem underglaze with a hake, on the right hand diagonal to represent red coloured clay and   biscuit fired to 1000 deg cent.  We brushed on 3 coats of the glaze with a hake and re-fired to 1040 deg cent. in an electric kiln.

Safety Data - fact sheets are available for one or more of these product items view factsheet list